If you're on local subnet, why not pull the MAC address out of the received packet?
Further, what happens to this when IPv4 goes away? Owen On Nov 5, 2012, at 12:14 AM, Henri Wahl <h.w...@ifw-dresden.de> wrote: > Hello World, > like other people we had the problem that existing DHCPv6 servers do not > evaluate the MAC address of clients, following RFC 3315. The IPv4 > clients already are managed via their MAC addresses so we wanted to use > these identifiers for IPv6 too for our dualstack network. > > At the end we had to write our own DHCPv6 server dhcpy6d which I want to > present here to a larger audience. It runs on Linux, tested on Debian > and CentOS. It gets the client MAC addresses from neighbor cache by > calling "ip -6 neigh" and caches them itself, allowing to access the > already working MAC-based IPv4 infrastructure. This obviously only works > on the local subnet but might be worked around with several servers > being connected via database storage of clients and leases. > > Features are: > - identifies clients by MAC address, DUID or hostname > - generates addresses randomly, by MAC address, by range or by given ID > - filters clients by MAC, DUID or hostname > - assignes more than one address per client > - allows to organize clients in different classes > - stores leases in MySQL or SQLite database > - client information can be retrieved from database or textfile > - dynamically updates DNS (Bind) > > We run it with ~500 clients without problems. I am interested if it > would run in larger environments too. If not, how to make it running. > Bugs and ideas how to improve it are welcome too. > > Packages are not yet available but the Python code should run as is. > > See further details at http://dhcpy6d.ifw-dresden.de > > Best regards > Henri Wahl > > -- > Henri Wahl > > IT Department > Leibniz-Institut für Festkörper- u. > Werkstoffforschung Dresden > > tel. (03 51) 46 59 - 797 > email: h.w...@ifw-dresden.de > http://www.ifw-dresden.de > > Nagios status monitor for your desktop: > http://nagstamon.ifw-dresden.de > > IFW Dresden e.V., Helmholtzstraße 20, D-01069 Dresden > VR Dresden Nr. 1369 > Vorstand: Prof. Dr. Ludwig Schultz, Dr. h.c. Dipl.-Finw. Rolf Pfrengle >
